Litecoin was launched in 2011 as a source-code fork of Bitcoin but with minor changes. It has frequently been described as "the silver to Bitcoin’s gold" due to its speed and low transaction fees, making for relatively better useability.
Since it also uses a blockchain ledger, Litecoin is a cryptocurrency like Bitcoin — and, as such, it is similarly traded. You can buy Litecoin on OKX in minutes using a range of different payment methods, including credit and debit cards, bank transfers and PayPal.